Secondary battery.



2 SH] ETS-SHEET 1.

Patented Nov. 14, 1911.

C. J. COLEMAN.

SECONDARY BATTERY.

APPLICATION' FILED 0011.7, 1903.

.'. Y wm f/v Z C/ G. J. COLEMAN.,

SEGONDARY BATTERY.

PPLIGATION FILED 001.7, 190s.

Pat-,611181 Nov. 14, 1911 2 SHEETS-SHEET 2.

DDD

mmmmmmmmmm mmmmmm Egg. 5

CLYDE J. COLEMAN, DE RCKAWAY, NEWfJERi SECONDARY BA'rfrEmn Specification of Letters Patent. Pater tied .iippiiaiion mea'ociober v, isos. ..ser iai.no,.iiz6,iae. j i

To allwvom it may concern: y

Be it'lcnown that I, Cnvnn J. COLEMAN, a citizen of the United States, residing at. Rockaway, in the county of Morris and' State of New Jersey, have invented certain 'new and useful Improvements in Secondary Batteries, of whichthe follow-ing isa spec1- ficat'ion, reference being had therein to the a. transverse vertical' section ofthe same.'-

provided l by accompanying drawing, forming a part thereof.

My invention relates to secondary or ster-- age batteries and has for itsobjects simplicity-of construction, durability. and eifeetiveness of-op'eration.l

According to my 'invention the -ivalls or partitions of individual cells are formed by.` plates .carrying active material, and accordi' 111;:r Ato, my?"4 invention, 'insulating "sealing means are provided inf-losing the space bei t\\ee1i"'tlie'p'lates to form a cell. According to 4'my' invention this -insulating sealingA means comprises a packing .frame in contact with the plates about the margins there of, `and suoli a packing frame provided with yielding contactfaees, and also suc-li a packing frame combined with a sealing filling at the ends thereof. n

My invention also includes the provision of insulating and protecting coverings at and in proximity to the tops and-bottoms of the plates, and insulating separations at portions of the plateswliicli are unprovided with active material, and clamping means the container and various improvements in the construction and combination of parts.

Ivwill-wnow described the accompanying drawings-illustrating a battery embodying ,my invention-'and willthereafter point out @Figure 1 is a. sectional plan Vview of a battery `embodying luy-invention. -Figi 1s Fig; B :isa face view of a--portiox'il ofthe. per-` 'foratedsine-ulated spacing means. ffEignA is aff-face' View ofone of the plates. Fig.- 5

- is an enlarged transverse sect-ionof theop- :pen-part= of a plate. Figs;- 6, V7 and 8.are,

l respectively, a face view, a -vertioalasection 'and'. a plan View of thespacing4 and sealing 'ae-means. Figs. 9 and 10 are horizontal -sections of^ modified 'fc rms vof spacingV and sealing means. "1

The easing'lis shwwn'fas of rectan ular form, and is conveniei tly made of woo' and 4the sides are secured in1 lace-byfasteningmeans, as-sciews1adaite ftoexert considerable pressure toforc i `tightly together the interior portions :oftl .e battery.

The plates :2 Carr-yi igf-the, activefmaterial portions. being hoiiefcombedbr provde l plates have the hone; Jcombed portions 3 lori.` both-faces. 'I -These ioneyoombed mor-tions:- also terminate .-belon1l the tops oft-he plates 'andabovethe bottom i of 4the-plates, and the to )s and bottoms of i he plates -areprovided with insulating and4 protect-ing coverings' 4 and 5, respectively.. which mayl be of soft -rubber cemented on .i rith asphaltum or-ot-her suitable cement. Th1 upper protecting-cov-.ff ering 4 extends, dovnufromvt-he top-'of-a plate lon both sides thereof toa line below the surfaces of the e ectrolyte, thereby protecting,r the plate vfror i exposureito air at the liquid line 4and from the deteriorationwhich usually loocursvonthe liquid line; The lower insulating covering l `extends upwardfrom the bottom of the, pla te on bothy sides thereof a suicient distance t i prevent short circuiting between the, pli .tes by dislodged por- 'tions of,- aetive mate rial, which may: fall to 'the'.bottiomof a celle I The spacing. and@ feeling means .comprise packing4 iranes 6.1i ing a-marginal contact ,with thebatteryplt tes and asfshown each having. a horizontal lower artorfbar andtwo end .-1 1pri lits -ex f.These.-fpaclnng rain slimy lieofhardwooi-i ten ing therefrom.

:boiled iii-,beeswax br of. hard-,=r.ubber and., in

44the:const-miction,lisho rninligssd'and 8, coveredwit-lil a. sof. .;4 rubber 7, .being jointed-.at the corne sto .facilitate drawing tit) von the rubber tube. .In the construction shown in Fig. 9 the packing frames are covered on their contact faces only with soft rubber facings S and in the construction shown in Figli) are. unprovided with yielding facings and may be of hard rubber and may be used with a proper cementing material on their contact faces. These packingframeslnake a tight marginal contact with the'l'iattcry plates when compressed by the tightening of the sides of' the container and ctl'ectually seal the electrolyte in the several cells formed between the battery plates. .\s an additional sealing means and to firmly hold the plates in place l. till the space between the ends of. the plates and end walls of the container and between'the outer faces of thc packing 'frames and end walls of the container, with a suitable asphaltlun or cement filling U. Between the active material carrying portions of the .'plates, perforated and corrugated ,Contact guards 10 are provided which may be 'of rubber or other suitable insulating material. Between the plates, at the portions of the plates unprovided with receptacles for active materials, separators are provided, these separators being shown as vertical rods 11, which may be of hard rubber and which ordinarily are not in tight contact with the plates. but which etl'ecthally resist any substantial warping or-distortionof the plates and,` exerting this resistance at noncellular portions of the plate, do not thereby injure the cells or dislodge the active material.

In the battery shown the several cells are connected in series, current collecting contact strips 12 being seated in grooves in the sides of the container in contact with the outer plates and being coi-i'nected to binding postslfl, forming the battery terminals. One outer plate is electro-positive and the other end plate is electro-negative, and the other plates are elcctro-|msitive on one side and electro-negative 'on the other side and the plates are insulated -from each other.

The electrolyte is-preterably gelatiuized 'by the addition of a small percentage of silicatil of soda so as to prevent any spilling during transit or in portable wol-lt' and my improved battery is particularly well adapted tor use in lnotor vehicles, cars, ete.

lt is'obvous that. various modilications may be mad(l iu the construct ion shown and above particularly described within tltC spirit and scopo ot my invcntion.

Vhat, l claim and desire Ato secureby Let.'- ters Patent is:

l. A serondam batti-ril cell emuprising a:

such plates about the margins thereof, such [melting trame having aseparate yielding covering, a container, a scali-ng tilting between the ends of the plates'and pecking frame and the ends of the container, and clamping means for pressing the plates and packing frame together.

2.- A secondary battery cell,',comprising a pair of plates carrying active material, a container, a relatively thin insulating covering enveloping the lower portion of each plate, said plates being arranged to provide a space between the insulating covers of adjacent plates to receive dislodged active material whereby to prevent short circuiting of the plates by such dislodgment of active material.

3. A secondary battery cell'comprising a pair of plates having active material carrying portions terminating below the tops of the plates and above the bottoms of the plates'and active material .in such portions, the plates at the bottom 'thereof being arranged to provide a space to -receive dislodged active material, a container, an electrolyte, the Lipper portions unprovided with active material of the plates extending from points below the upper` level of the electrolyte to points above such upper level, a pro tecting covering for the upper portion unprovided with act-ive material o and extending above and below the upper level of the electrolyte, and an insulating covering enveloping the lower portion unprovided with active material of each plate.

4. A secondary battery cell comprising a pair of plates having active mate-rial carry# ing portions terminating below the tops of the plates and above the bottoms of the plates and acti ve material in such portions, the plates at the bottom 'thereof being arranged to provide a space to receive dislodged active material, a container, an electrolyte; the upper portions nnprovidcd Wit-h active material of theplates extendingabove tlie upper levelof the electrolyte from points below the upper level of the electrolyte, a, protecting covering for such upper portion of eachplate` and an insulating covering cnveloping the lower portion unprovided with active material of. each plate and ada. )ted to prevent short-eircuiting. by the dis odged active material.

5. A secondary battery comprising a. plu rality ot' vertically arranged plates having a plurality of active material carrying portions aml active material in` such portions and intervening portions unprovided with active material and one or more insulating separators between the plates at the port-ions uuprovided with active `material, and msnlating scaling means in contact with the plates about the margins thereof to complete the walls of such cells.

tl. seeomlary battery cell comprising a. eontanerrfan electrolyte, a pair of plates each plate having u plurality of active-material carryveloping the upper and tower portions of 10 ing portions and active material in such poreach plate. A i tions and depressed portions unprovided In testimony whereof f have affixed my v;rith actixle` mlaterial, vulllsultng separators l signature in presence of t vo Witnesses.

etween t e afes at t e portions containing the actiire material and in Contact CLYDEV I COLEMAN' therewith,` s yplementary insulated sepa- Witnesses:

rators at the epressed portions and in con- HENRY BARNES,

tact therewith and protecting coverings en- HENRY D. WILLI@ is. 

